Finding the Fourth Proportional to 215,251.76, 322,760.39 and 139,340.09
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Solution
The fourth proportional to 215,251.76, 322,760.39 and 139,340.09 is: 208,934.23
Step by Step Solution
- Step 1: Write the proportion equation
215,251.76 : 322,760.39 = 139,340.09 : x - Step 2: Convert to fraction form
215,251.76/322,760.39 = 139,340.09/x - Step 3: Cross multiply
215,251.76x = 322,760.39 × 139,340.09 - Step 4: Simplify right side
215,251.76x = 44,973,459,480.53 - Step 5: Solve for x
x = 44,973,459,480.53/215,251.76 - Step 6: Final answer
x = 208,934.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.